Improvement in stump-extractor



N4 PETERS. PHOTO-LITHOGRAPHER. WASHINGTON. J. C.

L'tntrd4 garten attent dtijirr.

, -This invention relates to an ENocH FARNSWQRTH, or. sABBArH ansi,PENNSYLVANIA.

Letters Patent No. 104,003, (lated June 7, 1870.

IMPROVEMENT IN STUMP-EXTRACTOR.

Ehe Schedule referred to in these Letters Patent and making part of thesame.

To all whom it may concern Be it known that I, ENocH FAnNswon'TH, ofSabbath Rest, Blair county, Pennsylvania, have 'invented a new andimproved Stump-Extractor; and I do hereby declare that the following isa full, clear, and exact description thereof, reference being had to theaccompanying drawing and to the letters of reference marked thereon;

Drawing/ Figure l is a side elevation of my improved stumpextractor, itbeing extended and in position for raising a stump, and

Figure 2 is also a side elevation with the 1ever-sup port partiallydrawn in.

Like letters of reference indicate ident-ical parts in both ofthe-figures.

improved stump-ex` tractor; and

It consistsv`First, of three supports, one of them being bolted to theother two, in such'a manner as' to form a lever, and provided with twochains, one above and the other below its fulcrum, so that a stump orweight canbe raised at a greater distance above the ground than could bedone by one operation ofthe device ;and

Second, in the combination with the aforesaid parts of suitabletackliugfor operating the saine.

A, `I denominate a lever-support, which has its fulcrum between twouprights or beams, their position being indicated by the letter B, saidleverbeing also provided with two chains G and D, one above its fulcrumand the other below, the usefulness and operation of which will behereinafter fully explained.

A cross-bar, b, is nailed to each of the supports B.

E e Ff f are cords and rings, for which rings pulleys may besubstituted, as clearly shown, and readily understood by -a referencetothe drawing.

-G is a roller, having a concave edge traversing upon a. pole, to give afree and easy action thereto, as w'ell as to direct the course of thelever A.

The chains C D hang pendent from thevlever A, and are attached at orabout the points indicated, in any suitable manner.

In ordinary practice forextracting stumps, the chain C only is used, butin such cases as when'the operation of the machine must be repeated, asfor instance to raise a Weight above be accomplished as follows:

The parts being in position, as indicated in fig. 1, v

the ground, it canl the chain C is passed around the substance to beraised, and the hook is attached to the chain,- say at a point, c Thelever or support A is their drawn in and the weight raised through adistance determined by the size of the machine. D is then passed underthe weight, and hooked upon or at a point above, where its own hook isattached. A is then pushed out. Now, as Ithe chain G passes through agreater dist-ance of space than the chain D, in either raising `orlowering the lever, it will be seen that, as it is drawn in, the chaiuOwill rise through a greater distance than the chain D; so also when A isthrown out G will fall a greater distance than D; hence the entireweight will be equally distributed upon the chains.

' After the operation just explained, of chain G below where the chain Dis attached thereto will become slack, when its hook may be hitchedhigher up upon its own chain, making the second lift to the weight; andso the operation may be repeated until the weight has reached therequired height.

' The same result can be accomplished by operating the chains asfollows: Y

Elevato the weight by means of chain C, as before described; then passvthe chain D under the weight, as before, but, instead of attaching itto the chain G, hook it up in one of its own links and draw out A, thusleaving the weight entirely suspended upon D; pass C around the weight,and. hook it up upon one of itsown links, and again draw in A, when theweight is raised, and D is made slack, and so lthe opthat portion`eration cau be repeated.

Having thus described my invention,

What I claim, and desire to secure by Letters Pat ent of the UnitedStates, is-

1.. The chains G D, attached to and arranged to operate upon thelever-support A, as shown and dcscrbed. v f

2. The combination, with the chains O D, of the tackling E F f f, landroller G, all the parts operating together, as shown and specified.

In testimony whereof I have hereunto subscribed my name in the presenceof Vtwo subscribing witnesses. v

ENOCH FARNSWORTH. y

Witnesses:

.JosnrH R. Ensor, M. BERTH'RONG.

